WBCS Mains 2020 Official Paper-VI

Study the following table and answer the question that follows:
Number of Candidates Appeared (App.) and Qualified (Qual.) in a Competitive Examination from Different States Over the Years



The total number of candidates qualified from all the states together in 1997 is approximately what percentage of the total number of candidates qualified from all the states together in 1998?

How many $3$ -letter words with or without meaning, can be formed out of the letters of the word 'LOGARITHMS', if repetition of letters is not allowed?

Sanket earns twice as much in the month of March as in each of the other months of the year. What part of his entire annual earnings was earned in March?

If the average of $a,b,c$ is $15$, the average of $b,c,d$ is $12$ and the value of $a$ is $19$, the value of $d$ is:

Raju, Ramu and Razi can do a piece of work in $20,30\text{ and }60\text{ days}$ respectively depending on their capacity of doing work. If Raju is assisted by Ramu and Razi on every third day, then in how many days Raju will complete the work?